Pullman Form No. 108 30 Parlor Seats - 1 Drawing Room (DR) Ticketing Diagram. Used for Car 771 and 772 on Train 177, Leaving at 12:00 Noon from Boston to Washington. Train 177 was the very famous The Senator, a joint operation of the New Haven and Pennsylvania Railroads. New Haven brought the cars from Boston to New York and the PRR took them to Washington, DC.